Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Engine Cooling System: Specifications Mercury Montego III

GENERAL SPECIFICATIONS

ItemSpecification
Cooling System Capacities
Cooling system capacity w/aux heater12.0 liters (3.17 gal)
Cooling system capacity w/o aux heater10.0 liters (2.65 gal)
Coolant Type
Motorcraft Premium Gold Engine Coolant VC-7-A (in California, Oregon and New Mexico VC-7-B, in Canada CVC-7-A) or equivalent (yellow color)WSS-M97B51-A1
Other Chemicals
Premium Cooling System Flush VC-1ESR-M14P7-A
Cooling System Stop Leak Pellets VC-6WSS-M99B37-B6
Cooling System Pressure Test Specifications
Cooling system124 kPa (18 psi)
Radiator Cap Pressure Test Specifications
Pressure release cap89-124 kPa (13-18 psi)
Thermostat Opening Temperatures
Starts to open82°C (180°F)
Fully open95°C (203°F)

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

DescriptionNmLb-ftLb-in
Block heater2115
Upper-to-lower thermostat housing bolts1089
Thermostat housing bolts1089
Roll restrictor bracket bolts5541
Bypass tube bolts1089
Coolant pump bolts (1)
Transmission cooler bracket bolt653
Horn assembly bracket bolt1089
A/C condenser retaining bolt653
Radiator support bracket bolt653
Cooling fan motor and shroud653
Degas bottle bolts980
(1) Refer to the PROCEDURE .
(1)Refer to the PROCEDURE .

TORQUE SPECIFICATIONS

CAUTIONAll vehicle cooling systems are filled with Motorcraft Premium Gold Engine Coolant VC-7-A or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Always fill the cooling system with the same type of coolant that is present in the system. Do not mix coolant types.

The cooling system components are

  1. Engine coolant temperature (ECT) sensor
  2. Radiator
  3. Degas bottle
  4. Radiator draincock
  5. Coolant pump
  6. Thermostat
  7. Variable speed fan motor assembly
  8. Fan control module (FCM)

The coolant pump circulates the coolant.

The thermostat

  1. controls the engine coolant temperature.
  2. allows quicker engine warm-up.

The degas bottle

  1. provides a location for fill.
  2. contains coolant expansion and system pressurization.
  3. provides air separation during operation.
  4. replenishes the engine coolant to the system.

The fan motor

  1. operates only when the ignition switch is in the RUN position.
  2. has variable speeds and is controlled by fan control module.

The engine coolant flows

  1. from the lower radiator hose to the coolant pump.
  2. from the coolant pump to the engine block and the cylinder heads.

A closed thermostat returns the engine coolant to the coolant pump; an open thermostat allows the engine coolant to flow to the radiator.

Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level in the degas bottle.

When adding engine coolant, use a 50/50 mixture of clean distilled water and engine coolant.

To maintain the integrity of the coolant and the cooling system

  1. Add Motorcraft Premium Gold Coolant VC-7-A (in California, Oregon and New Mexico VC-7-B, in Canada CVC-7-A) or equivalent meeting Ford Specification WSS-M97B51-A1 (yellow color). Do not mix coolant types.
  2. Do not add/mix orange-colored Motorcraft Specialty Orange Engine Coolant VC-2 or equivalent meeting Ford specification WSS-M97B44-D or green colored Motorcraft Premium Engine Coolant VC-4-A (in Oregon and California VC-5) or equivalent (green color) meeting Ford specification ESE-M97B44-A. Mixing coolants may degrade the coolant's corrosion protection.
  3. Do not add alcohol, methanol or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
  4. Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft Premium Gold Engine Coolant since a Ford-approved recycling process is not yet available.

Refer to SYSTEM WIRING DIAGRAMS (Montego), SYSTEM WIRING DIAGRAMS (Five Hundred). or SYSTEM WIRING DIAGRAMS (Freestyle) for schematic and connector information.